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Versions: 38
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Contents
module Her
module Model
module NestedAttributes
extend ActiveSupport::Concern
module ClassMethods
# Allow nested attributes for an association
#
# @example
# class User
# include Her::Model
#
# has_one :role
# accepts_nested_attributes_for :role
# end
#
# class Role
# include Her::Model
# end
#
# user = User.new(name: "Tobias", role_attributes: { title: "moderator" })
# user.role # => #<Role title="moderator">
def accepts_nested_attributes_for(*associations)
allowed_association_names = association_names
associations.each do |association_name|
unless allowed_association_names.include?(association_name)
raise Her::Errors::AssociationUnknownError, "Unknown association name :#{association_name}"
end
class_eval <<-RUBY, __FILE__, __LINE__ + 1
if method_defined?(:#{association_name}_attributes=)
remove_method(:#{association_name}_attributes=)
end
def #{association_name}_attributes=(attributes)
self.#{association_name}.assign_nested_attributes(attributes)
end
RUBY
end
end
end
end
end
end
Version data entries
38 entries across 38 versions & 2 rubygems